Heating-drum.



No. 653,676. Patented luly I7, |900.

. J. W. HILLIKER.

HEATING DRUM.

(Application filed Dec. 15, 1899.)

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. Patented -July I7, |900. J. W. HILLIKER.

HEATING DRUM.

(Application led Dec. 15, 1899.)

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(No Model.)

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UNITED STATES PATENT OFFICE.

JAMES w. HiLL-IKER, or TaAvE'RsE CITY, MICHIGAN.

HEATING-cauti.

srEoIFIcATIoN forming part f Letters Patent No. 653.676, date July' 17, 1966.

Application filed December 15I 1899. Serial No. 740,434. (No model.)

To all whom t may concern:

Be it known that I, JAMES W. HILLIKER, a citizen of the United States, residing at Traverse City, in the county of Grand Traverse and State of Michigan, have invented a new and useful Heating-Drum, of which the following is a specification. v

This invention relates to heating-drums, the object in View being to provide an efficient drum ofsimple construction which maybe applied to the stovepipe of any ordinary heater, the drum by reason of its particular construc'- tion greatly economizing fuel and heat and securing a greater radiation of heat than is possible with the ordinary stovepipe.

It is also an object of this invention to provide an intermediate flue of novelshape which is also adjustably mounted and which will cause the products of combustion to pass back and forth lengthwise of the drum and also to combine with the drum a centrally-arranged cold-air duct in which air may be heated and conveyed to any desired point, the cold air being supplied to said duct either from above or beneath the drum and either from the room in which the heater is located or from an overhead or an adjoining room.

The detailed objects and advantages ot' the invention will appear in the course of the ensuing description.

.The invention consists in a heating-drum of novel construction and other novel features and details of construction and arrangements of parts, as hereinafter fully described, illustrated in the drawings, and incorporated in the claims.

In the accompanying drawings, Figure 1 is a vertical sectional view of a drum constructed in accordance with the present invention shown applied to a heater and stovepipe and showing also the association with the heater of a cold-air duct. Fig. 2 is a similar View showing a dierent arrangement of cold-air duct. Fig. 3 is an enlarged detail vertical section through the upperportion of the drum, taken at right angles to Figs. 1 and 2. Fig. 4 is a horizontal cross-section through the lower portion of Fig. 3.

Similar numerals of reference designate corresponding parts in all the figures of the drawings.

In order to illustrate the application of the The drum contemplated in this invention and indicated at 5 is conicocylindrical in shape, being largest atits lower end and smallest at its upper end, the said drum tapering regularly from its lower end ltoward its upper end. The drum is preferably composed of sheet metal and comprises, essentially, an outer wall 6, the lower end of which is par'- tially closed by a conical bottom '7, which forms the seat for the intermediate flue, here'- inafter described. The bottom 7 is provided with a pendent flange 8, by means of which it may be coupled to the lower section of the stovepipe 2, as clearly shown in Figs. 1 and 2. The upper end of the drum is partially' closed by means ot' aconical top 9, which has an upwardly-projecting ilauge 10 to enable the superimposed section 0f the stovepipe 2 to he coupled to the drum.

Vithin the drum and extending lengthwise thereof is a centrally-arranged cold-air duct ll, which is stationary with respect to the drum and stovepipe. The cold-air duct enters the drum at the bottom, passes entirely therethrough, and out through the top of the drum into the superimposed section of the stovepipe, where it is provided with an elbow or bend l12, which communicates with an outlet-port 13 in the stovepipe. Said cold-air duct 11 is also provided below the drum with another elbow 14, which passes outward through anopening 15 in the stovepipe,whence it is extended downward alongside the heater to providea terminal portion 16, which is preferably extended to a point adjacent to the floor of the room in which the heater is located, the lower end of said cold-air duct being reticulated or provided with inlet-openings 17 for the admission of air to thepduct. The cold air entering the bottom of the duct 11 passes upward centrally through thehe'ater and is heated and allowed to escape through the port 13 into the same room in which the heater is located. l

ln lieu of the arrangement of cold-air duct just described, the initial or terminal portion IOO 16 of said duct may communicate with an adjoining or overhead room, as shown in Fig'. 2, and the discharge end of said cold-air duct may also be passed into said adjoining room, as illustrated in the same figure, an essential feature of the arrangement being that a portion of said duct must pass centrally through and lengthwise of the drum. Under either arrangement a spiral deiiector 18 is iixedly mounted within the cold-air duct or that portion which lies within the drum, so as to retard the upward movement of the column of air being heated, thereby subjecting it to a more thorough heating. v

Within the drum 5 and between the oute wall 6 thereof and the centrally-arranged coldair duct 1l is interposed an intermediate flue 19, comprising an inner fiile-wall 2O and an outer due-wall 2l. The two walls 20 and 2l are rigidly connected by means of suitable bolts, rivets,- or equivalent connections 22, sufcient space being-left between the walls 2O and 2l to permit the products of combustion to pass lengthwise ot' the drum. `Both the inner and outer flue-walls 2() and 2l are of conicocylindrical shape, the object in making the walls 6, 20, and 21 of said shape being to cause the products of combustion to impinge against and follow along said walls in moving back and forth in the several lues. YIt will thus be seen that in addition to the intermediate iiue 19 an outer iiue 23 is provided outside of the outer liue-wall 2l and an inner iue 24 between the inner wall of the intermediate iiue and the centrally-arranged coldair duct.

The bottom edge of the inner flue-wall 2O is adapted under one'adjustment of the intermediate iiue to rest upon the conical seat 7, formed by the bottom of the drum, while the bottom edge of the outer tlue-wall 2l terminates above said seat in order to allow the products of combustion that pass down through the intermediate iiue to pass around the bottom edge of said wall and upward through the outer ue 23. On the other hand, the outer flue-wall 21 extends above the inner wall 20, so as to allow the products of combustion moving upward through the inner iiue to pass over the upper edge of the inner wall 20 and downward through the intermediate liuc. A crown-plate 25 is connected with the upper edge of the outer flue-wall 2l and is provided with a central opening 26, in which is received an upwardly-tapering conical centering device 27, preferably mounted upon the air-duct 1l as a convenient means of support. I also provide an annular ledge 28, which for convenience is formed integrally with the centering device 27 and supported therewith upon the cold-air duct ll. The intermediate flue comprised by the inner and ou ter walls 2O and 21, respectively, is adapted to be raised and lowered. As it israised the crown-plate 25 is carried upward above the ledge 28, so as to allow the products of combustion to pass directly from the inner iiue into the superimposed section of the st0ve= pipe. As the intermediate ue is lowered, the conical centering device 27 and the conical seat 7 at the bottom of the drum both act to center the intermediate flue and cause it to assume its proper position within the drum. l/Vhen the intermediate flue is lowered, the crown-plate 25 rests upon the annular ledge 28 and shuts ol the direct passage between the inner iiue 24 and the overlying stovepipe, thereby causing the products of combustion to pass downward through the intermediate iiue and upward through the outer flue and thence in the pipe.

In order to raise and lower or adjust the intermediate flue, a lifting-bail 29 is connected permanently to the crown-plate 25, extending thence upward over the cold-air duct 1l, where it is pivotally connected to one end of a lever 30, fulcrumed intermediate its ends and having connected toits opposite end an operating device 3l, which is arranged exterior-ly of the pipe and drum and pro'vided with one or more catch-shoulders 32, adapted to engage with a stop-shoulder 23 on the drum for the purpose of sustaining the intermediate Hue in an elevated position or with its lower edge out of contact with the seat or bottom 7 ot' the drum and its crown-plate out of contact with the annular ledge 2H.

By providing the drum with a conicocylindrical outer wall and constructing the intermediate fiue with walls of corresponding shape the productions of com buslion are caused to impinge against all of the walls,v

therebyproducing agreater radiation of heat. In view of the fact that theinner flue-wall20 converges toward the coldair duct as it approaches the upper end of the drum the products of combustion are also caused to follow closely and impinge against said air-duct. By making the intermediate i'lue adjustable vertically it is possible to cause the products a point adjacent to the upper end of the druml to pass downward through the intermediate ue and again upward through the outerlue and thence to the upper sections of the stovepipe. The adjustment of the intermediate tlue is effected by simple means, and the cold air which passes through the duct l1 may be taken either from the room in which the heater is located or from an adjoining room and may be delivered into the same room with the heater or into an adjoining room, as occasion demands. The passage of the cold air through the cold-air duct is also considerably retarded, and by the arrangement as a whole the air passing through the centrallyarranged duct is not only delivered ata higher temperature, but a more effective radiation of the heat from the drum is at the same time obtained.

From the foregoing it is thought that the construction, operation, and many advantages of the herein-described invention will be apparent to those skilled in the art Without further description, and it will be understood that various changes in the size, shape, proportion, and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

Having thus described the invention, what is claimed, and desired to be secured by Letters Patent, is-

1. The combination with a drum, of a centrally-arranged cold-air due, and a double- Walled flue arranged within the drum and surrounding the cold-air liue to form the inner and outer lines, said double walls forming between themselves an intermediate flue which communicates at its opposite ends with the inner and outer lues.

2. The combination with a heating-drum having inner and outer lues, of a doublewalled downdraft-iiue arranged within the drum and having its flue-passage communicating at its upper and lower ends, respectively, with the inner and outer lines, and means for adjusting said downdraft-ue.

3. The combination with a drum, of an inner cold-air iiue, a double-Walled flue within the drum and surrounding the cold-air tiue to form therewith the inner and outer iiues, said double walls forming between themselves an intermediate iiue which communicates at its opposite ends with the inner and outer flues, and means for adjusting the doublewalled ilue vertically to seat and unseat the same Within the drum.

4. The combination with aheatingd rum,of a doublewalled fine arranged within the drum and t'orrningtherein the inner and outer updraft-tlues, said double walls forming between themselves an intermediate downd raftilue which communicates at its opposite ends with the inner and outer flues, respectively, a seat on the drum for the lower end of one wall of said downdratt-tlne, another fixed seat within the drum for the upper end of the other wall of said flue, and means for adjusting the flue to and from the seats and thereby establish a direct or indirectA draft through the structure.

5. The combination with a heating-drum,of a centrally-arranged cold-air duct extending lengthwise therethrough and fixed with relation to the drum, connected flue-shells surrounding the air-duct and interposed between the latter and the outer Wall of the drum, said connected shells forming between themselves an intermediate return-due, and means for adjusting the shells, substantially as described.

The combination with a heating-drum, of a centrally-arranged cold-air duct mounted xedly therein, a stationary spiral deector arranged within said duct, and the adjustable line-shells surrounding the cold-air duct and forming between themselves an intermediate down-Hue which communicates at its opposite ends with up-ues around the cold-air duct and the drum-shell, substantially as specified.

7. A heating-drum comprising a tapering shell, and a return-flue having connected tapering shells forming between themselves a line-passage and said iue arranged concentric in the drum-shell to form therein the inner and outer ues With which the {lue-passage of the double-shelled flue communicates at opposite ends, and means for adjusting the return-flue bodily in the drum-shell to establish a direct or indirect draft therethrough.

8. The combination of a drum havingaseat at is lower part, a cold-air iiue, another seat on said fine, a double-Walled return-fine surrounding the cold-air flue and having its respective walls adapted to the seats, and means for adjusting the return-flue bodily Within the drum, substantially as described.

9. The combination of a drum, a cold-air flue therein, a conical seat on the cold-air line, a double-walled return-flue provided at one end with a crown-plate fitted slidably to the conical seat, and means for adjusting the return-Elue bodily within the drum, substantially as described.

10. ln a heating-drum, a double-walled return-Hue having the inner wall extended at one end beyond the companion wall, and a crown-plate fixed to the last-named Wall,com bined with a drum-shell, a central fiue,a guide fixed on said central fue and provided with a seat on which the crown-plate is adapted t0 rest, and means for adjusting the returntiue. 1l. The combination with a heating-drum, of a central flue extending therethrough, a seat on the flue, a double-walled return-tine arranged within the drum and surrounding the central flue, a crown-plate fast with one wall of the return-due and adapted to the seat on the central ue, a bail spanning the central flue and connected to the doublewalled tine, a lever connected to the bail, and an adjusting device for the lever, substantially as described.

12 The combination with a heating-drum, of a central cold-air flue, and a conicocylindrical iiue surrounding the cold-air due and arranged Within said drum, the inner and outer walls of said fiue being concentric and forming between themselves a return-flue passage, substantially as and for the purpose specified.

13. The combination with a heating-drum, of an interiorly-arranged double-Walled lue, the inner wall of said ue extending below the outer Wall, and the outer Wall extending above the inner wall, a crown-plate at the top ofthe outer Wall, and a ledge on which said crown-plate rests.

14. The combination with a heating-drum havinga conical bottom forming a flue-seat, of an interiorly-arranged adjustable double- IOO IIO

Walled flue, the inner* Wall of which extends In testimony that claim the foregoing as below the out-e1` Wall and rests on said seat, my own I have hereto afxed my signature irl the outer` Wall of said flue extending above the presence of two witnesses.

the inner Wall, a crown-plate at the top ofthe JAMES W. HILLIKER. 5 outer wall, and :1 ledge on which said erown- Witnesses:

plate is adapted to seat itself, substantially LORIN ROBERTS,

as specified. ANNA L. DAUGHARTY. 

